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Lion Elastomers LLC

Synthetic Rubber, Port Neches, Texas. NPDES permit TX0087602, in force until Dec 23, 2026. Last 12 months: over a limit 2 times (last January 2026), 5 of 15 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 20 days after each period: form A monthly (12 values), form Q quarterly (1 value)
Renewal application due: Jun 26, 2026 · 180 days before expiry; your permit may set another date
Last report on file: September 2026
Oct 2024 – Sep 2025: 2 values over a limit, 0 required values missing, 1 of 16 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period ending	Parameter	Reported	Limit	Over by
December 2025	Flow [dry weather], daily average	.316 MGD	≤ .253 MGD	25%
January 2026	Flow [dry weather], daily average	.469 MGD	≤ .253 MGD	85%

Limits in force (13)

Parameter	Statistic	Limit	Months
Temperature, water deg. fahrenheit	daily maximum	≤ 95 deg F	all year
pH	minimum	≥ 6 SU	all year
pH	maximum	≤ 9 SU	all year
Oil & Grease	daily average	≤ 10 mg/L	all year
Oil & Grease	daily maximum	≤ 15 mg/L	all year
Carbon, tot organic [TOC]	daily average	≤ 25 mg/L	all year
Carbon, tot organic [TOC]	daily maximum	≤ 50 mg/L	all year
Copper, total [as Cu]	daily maximum	report only (mg/L)	all year
Silver, total [as Ag]	daily maximum	report only (mg/L)	all year
Flow [dry weather]	daily average	≤ .253 MGD	all year
Flow [dry weather]	daily maximum	report only (MGD)	all year
Mercury, total [as Hg]	daily average	≤ .00085 mg/L	all year
Mercury, total [as Hg]	daily maximum	≤ .0018 mg/L	all year

How strict are these limits?

Carbon, tot organic [TOC], daily maximum 50 mg/L — stricter than 95% of 114 other minor industrial and other permits in Texas; 4% have the same limit
Oil & Grease, daily average 10 mg/L — stricter than 58% of 95 other minor industrial and other permits in Texas; 38% have the same limit
Temperature, water deg. fahrenheit, daily maximum 95 deg F — stricter than 52% of 46 other minor industrial and other permits in Texas; 30% have the same limit

Cited limits by parameter: Texas's rules and the federal ones.

Same industry: the 165 Chemicals and Allied Products permits in Texas.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TX0087602 · MCP: https://passage-data.com/mcp